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Geomechanics and Engineering Volume 5, Number 3, June 2013 , pages 263-281 DOI: https://doi.org/10.12989/gae.2013.5.3.263 |
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Numerical analysis of geocell reinforced ballast overlying soft clay subgrade |
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Sireesh Saride, Sailesh Pradhan, Sitharam T.G. and Anand J. Puppala
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| Abstract | ||
| Geotextiles and geogrids have been in use for several decades in variety of geo-structure applications including foundation of embankments, retaining walls, pavements. Geocells is one such variant in geosynthetic reinforcement of recent years, which provides a three dimensional confinement to the infill material. Although extensive research has been carried on geocell reinforced sand, clay and layered soil subgrades, limited research has been reported on the aggregates/ballast reinforced with geocells. This paper presents the behavior of a railway sleeper subjected to monotonic loading on geocell reinforced aggregates, of size ranging from 20 to 75 mm, overlying soft clay subgrades. Series of tests were conducted in a steel test tank of dimensions 700 mm | ||
| Key Words | ||
| ballast; geocells; model studies; numerical simulations; soft clay | ||
| Address | ||
| Sireesh Saride: Department of Civil Engineering, Indian Institute of Technology Hyderabad, India; Sailesh Pradhan, Sitharam T.G.: Department of Civil Engineering, Indian Institute of Science, Bangalore, India; Anand J. Puppala: Department of Civil Engineering, The University of Texas at Arlington, Texas, USA | ||